305311212242 has 32 divisors (see below), whose sum is σ = 474756885504. Its totient is φ = 147101472000.

The previous prime is 305311212197. The next prime is 305311212263. The reversal of 305311212242 is 242212113503.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68499278 + ... + 68503734.

It is an arithmetic number, because the mean of its divisors is an integer number (14836152672).

Almost surely, 2^305311212242 is an apocalyptic number.

305311212242 is a deficient number, since it is larger than the sum of its proper divisors (169445673262).

305311212242 is a wasteful number, since it uses less digits than its factorization.

305311212242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8954.

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 305311212242 its reverse (242212113503), we get a palindrome (547523325745).

The spelling of 305311212242 in words is "three hundred five billion, three hundred eleven million, two hundred twelve thousand, two hundred forty-two".